1026-8774 1026-8774 S1026-87742005000200199 Mexico Mexico Mexico 00 00 2005 00 00 2005 22 2 199 211

2000 63 2002 71 71-81 2002 83 1998 85 2002 20-1 1994 131 1979 5 99-114 1971 3 1 1 2-58 2000 LIII 1-26 2002 99 1996 61 1963 203 1973 60 17-33 1990 9 1 1 82-111 1992 87 1635-7 2000 54-5 1938 46 569-82 1986 615 1980 549 2002 128 2001 87 1961 13 147-68 1987 98 249-64 2001 704 2000 20 3 3 302 2001 121 2 2 129 2002 83 1994 454 1993 2040 1-171 2003 20 2 2 154-9